Ok, I cheated and googled. So I won't spill the beans. That is assuming I found what you were referring to.
There were a couple of things. I doubt you meant the day the obituary was posted for Mrs. Bridgett Gibbs, who passed away on 20 Jan 1879. It was in the McHENRY PLAINDEALER NEWSPAPER, of Crystal Lake, IL,. Her age was not recorded.